O que é melhor, wireless temperature measurement or distributed fiber optic temperature sensor for substations-INNO

A substation is a power facility in the power system that converts voltage, receives and distributes electrical energy, controls the flow of electricity, and adjusts voltage. As a very important energy conversion base, if a fire or other power accident occurs in a substation, it will inevitably lead to large-scale power outages, causing significant impact and losses to the production of enterprises and the lives of people. Portanto, ensuring the safety and reliability of substations and avoiding fires are crucial. Entre eles, equipment overheating is an important hidden danger that can lead to substation fires. Overheating at the dynamic and static contacts and other connections of high-voltage switchgear in substations, juntas de cabos, conexões de cabo, and partial discharge of high-voltage cables are the main hidden dangers of large-scale accidents. Além disso, these places often have voltages of several thousand or even tens of thousands of volts, posing great safety hazards for operators to enter and investigate.

Características e desvantagens de Wireless Temperature Measurement Sistema na Subestação

Sensor de temperatura sem fio, receptor centralizado sem fio, monitoramento de subestação, estação de controle centralizada, centro de monitoramento remoto, o sensor de temperatura sem fio é conectado ao receptor centralizado sem fio por meio de comunicação sem fio; O receptor centralizado sem fio é conectado ao monitoramento da subestação através de comunicação com fio; Monitoramento de subestações e conexão de estação de controle centralizada; Connection between remote monitoring center and centralized control station; The substation monitoring configuration is equipped with a GSM network that can trigger temperature anomaly alarm information to be sent to the relevant staff’s mobile phones; The remote monitoring center, estação de controle centralizada, and substation monitoring are each equipped with temperature monitoring display devices, which monitor the temperature of the substation equipment in real time. The substation monitoring has a preset temperature threshold, which can compare the received temperature data with the preset threshold and send abnormal alarm information to the relevant staff’s mobile phones to passively set a temperature threshold. It cannot set multi-level alarms according to the specific environment. If there are significant differences in the basic temperature of multiple points in the substation, the system is prone to misjudgment, and even a large fire may occur when the alarm is triggered. Unable to accurately locate the location of the accident point, can only determine the fire alarm area, and cannot reflect the real-time temperature situation.

Vantagens de Sistema distribuído de medição de temperatura de fibra óptica in Substation

Due to its ability to achieve distributed continuous monitoring of temperature along the fiber optic cable, and its advantages such as small size, peso leve, bom isolamento elétrico, resistência à corrosão química, resistência a altas temperaturas, alta sensibilidade, resposta rápida, à prova de explosão, retardador de chama, baixo custo, e resistência à interferência eletromagnética, fibra óptica distribuída sensores de temperatura têm sido amplamente utilizados na detecção de vazamentos em tubulações, dam infiltration, monitoramento do sistema de energia, fire warning, and medical treatment.

FJINNO provides an sistema de medição de temperatura de fibra óptica for substation temperature monitoring. By using distributed optical fiber temperature testing based on Raman scattering temperature measurement technology, temperature anomalies can be accurately and timely located on one optical fiber; Ao mesmo tempo, o sistema está equipado com valores de alarme de temperatura de vários níveis e alarmes de taxa de aumento de temperatura, exibindo curvas de distribuição de temperatura em tempo real, e fornecer aviso prévio antes que ocorra um incêndio. Isto resolve o problema de que os sistemas de medição de temperatura existentes só podem definir passivamente um limite de temperatura, que é propenso a erros de julgamento e não consegue localizar com precisão a localização do ponto do acidente. Atualmente, there are many studies on distributed fiber optic temperature measurement technology based on Raman scattering at home and abroad. The technical basis for achieving distributed measurement of temperature along the fiber optic cable is the Raman scattering and optical time domain reflection technology generated when light propagates in the fiber optic cable. When light undergoes Raman scattering in the fiber optic cable, its scattered light intensity is related to temperature, so intensity modulation technology can be used to measure the temperature along the fiber optic cable; By using optical time domain reflection technology, the demodulation of the position information of the measured temperature point can be achieved, thus completing the distributed measurement of temperature along the fiber optic cable.